def remove_empty_strings(lst): return [x for x in lst if x != ""] # 测试代码 original_list = ["hello", "", "world", " ", "python", ""] new_list = remove_empty_strings(original_list) print(new_list) 复制代码 输出结果为:['hello', 'world', ' ', 'python']。 0 赞 0 ...
None 可以换成内置函数len,使用set将失去原有顺序。 参考 https://www.techiedelight.com/remove-empty-strings-from-list-python/ https://www.geeksforgeeks.org/python-ways-to-remove-duplicates-from-list/
remove: 删除列表中的第一个匹配项。例如，my_list.remove('item')会删除my_list中的第一个'item'。pop: 删除并返回列表中的一个元素（默认是最后一个）。例如，my_list.pop()会删除并返回my_list的最后一个元素。del: 使用索引来删除元素。例如，del my_list[2]会删除my_list中索引为2的元素。列表的其...
'join', 'ljust', 'lower', 'lstrip', 'maketrans', 'partition', 'removeprefix', 'removesuffix', 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', 'title', 'translate', 'upper', 'zfill'] >>...
# a list of strings names = ["Josie", "Jordan","Joe"] print(my_numbers_list) print(names) #output #[10, 20, 30, 40, 50] #['Josie', 'Jordan', 'Joe'] 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 列表项也可以是异构的,即它们不同的数据类型。
1. Introduction to Strings Astringis a Python data type that’s used to represent a piece of text. It’s written between quotes, either double quotes or single quotes and can be as short as zero characters, or empty string, or as long as you wish. ...
1.list转string 命令:''.join(list) 其中,引号中是字符之间的分割符,如“,”,“;”,“\t”等等 如: list = [1, 2, 3, 4, 5] ''.join(list) 结果即为:12345 ','.join(list) 结果即为:1,2,3,4,5 str=[] #有的题目要输出字符串,但是有时候list更好操作,于是可以最后list转string提交 ...
22. Remove Empty Tuple(s) from a List of Tuples Write a Python program to remove an empty tuple(s) from a list of tuples. Visual Presentation: Sample Solution: Python Code: # Create a list 'L' containing various elements, including empty tuples and tuples with strings.# Use a list...
If the 324 separator is not found, return two empty strings and S. 325 """ 326 pass 327 328 def rsplit(self, sep=None, maxsplit=-1): # real signature unknown; restored from __doc__ 329 """ 330 S.rsplit(sep=None, maxsplit=-1) -> list of strings 331 332 Return a list of...
>>> x = float('nan') >>> y = x / x >>> y is y # identity holds True >>> y == y # equality fails of y False >>> [y] == [y] # but the equality succeeds for the list containing y True💡 Explanation:'inf' and 'nan' are special strings (case-insensitive), which,...